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    # 第十一週週記 ###### tags: `創新原型實作` `第十一週` ## 光控馬達-利用光敏電阻控制伺服馬達 在操作過程中發現所帶的雙接頭杜邦線好像壞掉,在紅燈測試中,單接頭杜邦線測試沒有問題,但當想延伸到麵包版時卻又無法量,除此之外製作光敏電阻控制馬達時,發現馬達無法轉動,但單接線的光敏電阻卻能夠使用。 ![](https://i.imgur.com/A68oXYI.jpg) :::info 程式碼:有將servo前加上ameba,除此之外如前面所說在上傳重啟板子後,光敏電阻能夠反映光讀取數據,因此我和組員推測為: 前提: * 為避免程式及接線有誤,先完全按照簡報操作。 * 上傳過程以確認沒有出現所謂錯誤訊息。 過程: * 需使用單接線的按鈕及光敏電阻皆可正常使用,但過程中也有找出不可使用的單接線。 * 當原本按鈕及led延長到麵包版並使用雙接線發現無法使用。 * 除此之外需要雙接線的馬達無法使用但馬達以更換為新的。 可能結果: * 雙接頭線有問題 * 操作麵包板有誤 * 我一時糊塗,接錯線了 ![](https://i.imgur.com/7b4WDKO.png) ![](https://i.imgur.com/B5JYkRQ.png) ::: ## 本周實作心得 本周終於開始接觸Arduino,一看到板子及零件覺得好複雜,不過在鴻琪老師的快速入門下,對於操作及接線有初步的熟識及了解,此外為了更了解麵包板,也請教身邊有修過相關課程的朋友,並且在禮拜四下午三節課的時間在課堂上使用(好學生還是要好好上課,請勿模仿),其中最常面對到的是錯誤訊息顯示Cannot find ameba on mbed driver! Please re-plug Ameba.也上網查到解方,奇怪的是在最後下課前led竟然亮了,但不太穩定,跟後續操作一樣,因為雙接頭杜邦線有問題。 ![](https://i.imgur.com/ZbG3jSP.jpg) #### 參考資料: [How to fix error:cannot find ameba on mbed driver! please re-plug ameba.](https://forum.arduino.cc/t/err-cannot-find-ameba-on-mbed-driver-please-re-plug-ameba/477726) ## 期末專案進度 在學習arduino的基本使用後重新檢視期末專案,決定開始蒐集資料,我們這組主要為折衛生紙機和起床就手機號,目前階段為了解兩個方案需要的技術及資料蒐集,再從可行性、興趣去做決定,折衛生紙機的前身是自動折衣板,基本上是要有至少三個馬達驅動板子將輕薄平面物件折起來,實際案例如下: :::success ### 摺衣板-使用三個步進馬達 <iframe width="560" height="315" src="https://www.youtube.com/embed/DfWq-9v6yC4" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> ### 使用八個伺服馬達 ![](https://i.imgur.com/koigOlo.png) ![](https://i.imgur.com/0YTXG6z.png) ![](https://i.imgur.com/WNs1f50.png) ![](https://i.imgur.com/qz4Xq6Q.png) ![](https://i.imgur.com/cvcAQQw.png) ``` 圖源自 自動折衣機 作者:許虔華。臺北市立松山高級工農職業學校。 楊凱樺。臺北市立松山高級工農職業學校。 ``` ### 步進馬達與伺服馬達比較 ![](https://i.imgur.com/8xQ1RYE.png) ``` 圖源自 自動折衣機 作者:許虔華。臺北市立松山高級工農職業學校。 楊凱樺。臺北市立松山高級工農職業學校。 ``` ### 結論 基本上由於我們所製作的專題規模較小,為方便使用及操作至少需要三到四個伺服馬達、製作手臂的材料、螺絲,如果選擇用塑膠材質的話:膠板(ABS板)、無縫接著膠(該膠水特性是並非直接在物體表面上塗上膠料連接,而是能夠直接將塗抹面的塑膠融化並快速凝固),如果用木板的話則是需要木板並使用雷切及其他切割機。 ![](https://i.imgur.com/xJSYwDU.png) ![](https://i.imgur.com/S3QPYe4.png) ::: ### 起床就手機號 <iframe width="560" height="315" src="https://www.youtube.com/embed/j1Nx0rJfLyM?start=391" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 在第9周聽完建議後,覺得在起床機加上感測人靠近就會迴避的裝置確實還蠻有趣的,使用除了不得不起床"準時"關鬧鐘,最後卻因為要追逐鬧鐘"遲到",在實作上,有看到有高中生也有想出類似的想法,但由於介紹時間短,僅能從畫面推敲配置。 ### 結論 材料上需要原本就附有的HC-SR04 超音波測距,當人靠近時能夠遠離,除此之外還需要聲音感測模組,結構面由於要支撐手機會希望以木板製作,再來就是輪胎及馬達兩顆。

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